moved and improved thanks

Moved thanks-for-fixes.md -> thanks-for-help.md

References to thanks-for-help.md are referred to
as just the _thanks file_.

Updated links to reflect the above file change.

Links to winner files in bugs.md now start with /.

Updated the `/inc/sidenav.default.html` file
to use an improved sidenav menu that includes
a link to "How to enter the IOCCC".

Fixed reference to FAQ entry regarding 'gets()' in `bugs.md`.

Removed some trailing whitespace in `bugs.md`.
Removed some trailing whitespace in `faq.md`.

Fixed links into specific thanks file entries.

Added more info to FAQ 0.0 "How may I submit to the IOCCC?".

The temporary top level HTML files (contact.html, index.html,
judges.html, news.html, winners.html, years.html) have
a consistent set of links (w/o any bold links) that
match the revised `/inc/sidenav.default.html` sidenav menu.
These temporary top level HTML files are not yet being built
and so they do not yet use the `inc/*.html` system.

TODO: Turn contact.html, index.html, judges.html, news.html, winners.html,
and years.html into markdown files that markdown to HTML tools will generate.

1988/dale/README.md

@@ -44,7 +44,7 @@ make clobber alt
 ```
 
 Use `dale.alt` as you would `dale` above. To understand the differences in more
-detail, see [thanks-for-fixes.md](/thanks-for-fixes.md).
+detail, see [thanks-for-help.md](/thanks-for-help.md).
 
 
 ## Judges' remarks: